There are 13 leaves on the left olive branch with 13 berries. 13 stripes on the middle shield. 13 arrows on the right. 13 stars above the eagles head. 13 letters in the "E Pluribus Unum" on the ribbon. 13 letters in Annuit Coeptis. There are 13 blocks top to bottom on the pyramid. Fritz Springmeir in his The 13 Bloodlines says these 13 blocks represent the 13 Satanic family's.

The Apophiosis of Washington. The mural pictures the nations first father surrounded by 13 maidens.

On August 6, 1945 at 8:15 a.m. United States B-29 bomber Enola Gay, on Mission No. 13, dropped an atomic bomb called "Little Boy" on Hiroshima, Japan near the 33rd Parallel